PAGE 1 OF One of the design requirements of glass used in buildings is to resist the loads created by wind and snow. ASTM E to the French and ASTM standard, that in some cases admit a lower design thickness for glass, then for the same . NF P  ASTM E – Glass strength evaluation prior to ASTM E Twelve U.S. glass thickness designations were covered from millimetre to millimetre.
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These effective thickness values can be used with standard engineering formulae or finite element methods for calculating both deflection and glass stress of laminates subjected to load. Originally approved in The final thickness and type of glass selected also depends upon a variety of other factors see 5.
For aspect ratios greater than 5, use 5. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. The question in specifics is in regards to the caution stated in X1.
By joining you are e300-12 in to receive e-mail. In addition, considerations set forth in building codes along with criteria presented in safety glazing standards and site specific concerns may control the ultimate glass type and thickness selection.
E 1300 – 12ae1
We are a non-profit group that run this website to share documents. We need your help to maintenance this website. Complete discussions of the formulation of the model are presented elsewhere 2, 3. Note that Section 6 references a Pb less than or equal to 0. Active view current version of standard. Such deflections, which will exceed the lite thickness, should be rounded to the nearest mm 0.
Download Now Defense manufacturing is all about project manufacturing and project accounting. Summary of Practice 4.
The intent of Appendix X9 is atsm provide a method that allows the user to perform engineering analysis of lami- X9. Use Vallabhan and Chou 1 for alternate method. A conservative allowable surface stress value for a 3-s duration load is Work Item s – proposed revisions of this standard.
ASTM Ea – Glass engineering – Eng-Tips
Download Now White Paper: Therefore the AN lite probability factor becomes: Ashm practice shall not apply to other applications including, but not limited to, balustrades, glass floor panels, aquariums, structural glass members, and glass shelves.
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Generally the actual aspect ratio of the windows is between 1 and 2. The PE I usually work with in regards to glass, had a medical event he has since recovered from. The values given in parentheses are for e1300-1 conversions to inch-pound units that are provided for information only and are not considered standard. Please copy and paste this embed script to where you want to embed Embed Script.
These flaw parameters represent the surface strength of weathered window glass that has undergone in-service conditions for approximately 20 years.
ASTM E – 12 Standard Practice for Determining Load Resistance of Glass in Buildings
The final thickness and type of glass selected also depends upon a variety of other factors see 5. Approximate Center of Glass Deflection Determination in SI Units—Determine the approximate center of glass deflection associated with a vertical by by 6-mm rectangular glass plate subjected to a uniform lateral load of 1.
Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. Click Here to join Eng-Tips and talk with other members! Permission rights to photocopy the standard may also be secured from the ASTM website www. Polished Edges, MPa psi Thanks for your consideration and time. If the LR is less than the specified load, then other glass types and thicknesses may be evaluated to find a suitable assembly having LR equal to or exceeding the specified design load.
Significance and Use 5. Red Flag This Post Please let us know here why this post is inappropriate.
If the sum of all e100-12 thicknesses is greater than 1. The load sharing is then based on the individual ply thicknesses of the LG. Please fill this form, we will try to respond as soon as possible. NOTE 4—The user is recommended to limit the combined width of both air spaces in the IG unit to less than or equal to 25 mm 1 in.